Ordinal.sub_le

∀ {a b c : Ordinal.{u_4}}, a - b ≤ c ↔ a ≤ b + c

Defined in: Mathlib.SetTheory.Ordinal.Arithmetic
Cited by: 5 results in Mathlib
Foundations: Depth 38 from the axioms · uses propext, Classical.choice, Quot.sound

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